Air outlet device for ventilating apparatus



Dec. 4, 1956 L. R. PHlLLlPS...'l' AL AIR OUTLET DEVICE FOR VENTILATING APPARATUS Filed Nov. 24, 1952 2 Sheets-She et 1 Dec. 4, 1956 L. R. PHILMPS EIAL 2,

AIR oumzr osvrcs' FOR vsmm'rmc APPARATUS Filed Nov 24, 1952 2 Sheets-Sheet 2 BY A ORNEY United States Patent AIR OUTLET DEVICE FOR VENTILATING APPARATUS Leonard R. Phillips, East Hartford, and William J. Waeldner, Farmington, Comm, assignors to Anemostat Corporation of America, New York, N. Y., a corporation of Delaware Application November 24, 1952, Serial No. 322,265

3 Claims. (Cl. 98-40) This invention relates to air outlet devices for ventilating apparatus, and has particular reference to improvements in air' outlet devices of the type which utilize supply air delivered through them to induce into them for admixture with the supply air part of the air of a room or other enclosure into which the devices discharge, whereby any temperature differential between the supply air and the room or enclosure air is quickly reduced Withinand in .the immediate vicinities of the devices.

Generally speaking, the object of the invention is to provide a simple, practical air outlet device of the type mentioned embodying a novel design such that supply air flowing through the device induces into the device for admixture with the supply air an exceptionally large proportionate amount of theair of a room or other-enclosure into which the device discharges, whereby exceptionally wide .temperature .difierentials between the supply air and the room or enclosure vair may be very quickly reduced.

To the end of accomplishing the foregoing purpose, a more specific object of the invention is to provide .an air outlet device of the type mentioned which embodies a design for dividing the supply air into a plurality of separate, spaced apart streams and for freely admitting to the spaces between said streams air from the room or enclosure into which the device discharges, whereby the induction and mixing actions are exceptionally rapid.

With the foregoing and other objects in view, as will become more fully apparent as the invention is better understood, the same consists in an air outlet device embodying the novel features of construction, combination and arrangement of parts as are illustrated by way of example in the accompanying drawings and as will be hereinafter more fully described and claimed.

In the accompanying drawings, wherein like characters of reference denote corresponding parts in related views:

Fig. 1 is a central, longitudinal section through an air outlet device constructed in accordance with one practical embodiment of the invention.

Fig. 2 is a rear end view of the device shown in Fig. 1.

Fig. 3 is a rear end view of the element used for divid ing the supply air into a plurality of separate streams; and

Figs. 4 and 5 are rear end views of air deflecting elements of the invention.

Referring to the drawings in detail, it will be observed that the device therein illustrated comprises an outermost, open-ended, hollow, flaring member and a smaller, hollow, flaring member 11' spaced inwardly from said member 10' to provide between said members an open-ended passageway 12' 'through which supplied air flows from a duct 16' suitably connected to the smaller or rear end of the member 10'. In addition, the device illustrated includes a hollow, flaring member 22 smaller than and spaced inwardly from the member 11 so that a second passageway 23 for supplied air is provided between said members 11' and 22.

2,772,623 Patented *Dc. i4, f 1 956 ice Extending across the rear ends of'the members 10, 11' and'22 is a'plate 24 whichhas'stepp'ed portions 25 and 26 alined with and extending across the rear ends of the passageways 12' and 23, respectively, atsubstantially right angles tosaid passageways. In the stepped portions 25 and 26 are apertures 27 and 28, respectively, which are disposed in side toside, spaced apart relationship to each other and through'whichsupplied air flows to the passageways 12 and 23. Connecting the stepped portions 25 and 26 is a flaring portion 24 which is substantially alined with the'fiaring member 11' and which extends inwardly with'respect to the stepped portion '25 into the path of flow of supply air delivered -'to the device through the rear end of the flaring member 10'. Thereby said portion'24 constitutes means which is effective to intercept a portion of the supplyair and to deflect it laterally outward through the apertures 27 into the passageway 12', therebyto insure flow of the total volume of the supply air'in properproportional amounts through the passageways 12' and 23, respectively. 'The portions of'the plate 24 between theapertures 27 and 28 prevent any flow of supply air through the device other than through "the apertures 27 and 2S. =Th'erefore, the supply air is delivered through the passageways 12 and 23 in therformrof'separate streams which are spaced apart in :a :direction transverse with respect to their directions offlow. In Fig. 2 the streams are indicated by dot'and dash lines and are designated as a, while the spaces betweenthe'm are designated as b' I The flaring member '22 is exposed a'tits front to the air :of the :room or other enclosure into which the device discharges, and at its :rear end either is provided with openings or is .cut away, -as shown "at 30, -to provide for flow 10f room .or enclosure air'into the passageways 23 and 12. a

The ;rear end of the member 11' also is provided with openings or is cut away, as shown at 29, to provide for flow of air from the passageway 23 to the passageway 12.

Supply air flowing through the passageways 1 2 and 23 in the form of spaced apart streams a entrains .air from the spaces b' between the streams and thereby reduces the pressure in the spaces b with the result that room or enclosure air is induced through the members 11 and 22 and their openings or cut away portions 29 and 30, as the case may be, into the passageways 12' and 23 where it is entrained by and becomes mixed with the streams a.

As is apparent, the device illustrated provides for the induction into the device and admixture with any given amount of supply air a large proportionate amount of room or enclosure air.

According to the invention the flaring members 11' and 22 and the plate 24 are fastened together as a unit and the plate 24 is provided with arms 31 having lateral extensions 32, while the member 10' has portions pressed therefrom to provide sockets 33 with which the extensions 32 are engageable and disengagable by rotation of said plate 24 relative to said member 10'. Thus, the said unit may readily be assembled with and disassembled from the member 10'.

Obviously the device instead of being of circular shape as shown, may be straight or of any other desired shape and extend in a direction transverse to the direction of flow of air through the device.

From the foregoing description considered in connection with the accompanying drawings, it is believed that the construction and opera-tion of the device i-llustrated will be clearly understood and that their advantages will be appreciated. It is desired to point out, however, that while only certain specific structural embodiments of the invention have been illustrated and described, the same is readily capable of various other specifically difierent structural embodiments within its spirit and scope as defined in the appended claims.

We claimi 1. An air outlet device comprising an outer open-ended hollow flaring member, through the smaller or rear end of which air is supplied to the device, an inner hollow flaring member, and an intermediate open-ended hollow flaring member, said members being spaced apart to provide between them outer and inner passageways flaring forwardly relative to the longitudinal axis of the device for flow of supply air thereth-rough into an enclosure, a plate including stepped portions extending across the rear ends of said passageways, respectively said stepped portions having therein apertures disposed in side to side spaced apart relationship to each other to cause supply air flowing through said passageways to be divided into side to side spaced apart streams, said plate further including a flared portion extending between said stepped portions and substantially alined with said intermediate flaring member and effective to intercept a portion of the supply air and to deflect it laterally outward through said outer passageway, and means providing for flow of ambient air through the rear end portions of said inner and said intermediate flaring members into the rear end portions, respectively, of said passageways for intermixture with the supply air streams flowing through said passageways.

2. An air outlet device comprising an outer openended hollow flaring member, through the smaller or rear end of which air is supplied to the device, an inner hollow flaring member, and an intermediate open-ended hollow flaring member, said members being spaced apart to provide between them outer and inner passageways flaring tforwa-rdly relative to the longitudinal axis of the device for flow of supply air therethrough into an enclosure, a first plurality of elements extending across the rear end of said outer passageway in side to side spaced apart relationship to each other to divide supply air flowing through said outer passageway into a plurality of side to side spaced apart streams, a second plurality of elements disposed inwardly with respect to said first plurality of elements and extending across the rear end of said inner passageway in side to side spaced apart relationship to each other to divide supply air flowing through said inner passageway into a plurality of side to side spaced apart streams, flared means extending between said elements and substantially alined with said intermediate flaring member and disposed in the path of flow of the supply air and effective to intercept a portion of the supply air and to deflect it laterally outward between said first plurality of elements into said outer passageway, means providing for flow of ambient air through the rear end portion of said intermediate flaring member into the rear end portion of said outer passageway, and means providing for flow of ambient air through the rear end portion of said inner flaring member into the rear end portion of said inner passageway. I

3. An air outlet device as set forth in claim 1 in which the rear end portions of the inner and the intermediate flaring members are recessed to provide for flow of ambient air through the inner and the intermediate flaring members into the rear end portion of the inner and the outer flaring passageways, respectively.

References Cited in the file of this patent UNITED STATES PATENTS 2,199,525 Kurth May 7, 1940 2,209,121 Honerkamp July 23, 1940 2,300,574 Jepertinger Nov. 3, 1942 2,301,045 Heath Nov. 3, 1942 2,339,296 Schumann Ian. 18, 1944 2,339,629 Fischer, Ir. Ian. 18, 1944 2,369,303 Kurth et al Feb. 13, 1945 2,396,208 Serre et a1. Mar. 5, 1946 2,407,284 Kennedy Sept. 10, 1946 2,432,289 Dauphinee Dec. 9, 1947 2,525,157 Trane Oct. 10, 1950 2,541,280 Phillips Feb. 13, 1951 2,564,334 Kennedy Aug. 14, 1951 2,624,262 Phillips I an. 6, 1953 

